Mechanism for making glass containers



LSMMSS Nazwo 3 1925. I I

- W. E. GLASPEY MECHANISM FOR MAKING GLASS CONTAINERS Filed Oct. 22, 1923 4 Sheets-Sheet i ,1 fivei iior': Warren'j? 6/05,?76

Nov. 3, 1925. 1,560,158

\V. E. GLASPEY MECHANISM FOR MAKING GLASS CONTAINERS Filed 001; 22, 192:5 4 heets-Sheet 2 Nov. 3 1925.

W. E. GLASPEY MECHANISM FOR MAKING GLASS CONTAINERS Filed Oct. 22, 1923 4 Sheets-Sheet 5 5 III I hm h i i -1}--- II. a i v ,1 a

Nov. 3, 1925.

W. E. G LASPEY MECHANISM FOR MAKING GLASS CONTAINERS 4 Sheets-Sheet 4 Filed Oct. 22, 1923 Potent Nov. 3, l hd.

WARE El. GLAJ'SEEY, 0E BEIDGE'IQN, NEW JERQEY, ASSIG-NO R '10 SPRING BTOPPEiR COMPANY, 01! YORK, K. 111,

A CORPORATION OF DELAWARE.

MEGKANI$M FOR EAKING GLA$S CONTAINERS.

Application flied October 2%, 1923. Serial Kc. 6?0,M2.

To all whom it may concern:

Be it lmown that I, WARREN E. (Simmer, a citizen of the United States, residing at Bridgeton, in the county of Cumberland and State of New Jersey, have invented a new and useful Improvement in Mechanism for Making Glass Containers, of which the fol-.

lowing is s specification.

This invention relates particularly to. mechines provided with psrison molds adapted to form blanks, and provided with blow molds for blowin the blank to the' shape of the finished article.

The primary object of the present invention is to provide a machine of'this general character with mechanism for forming an internal thread in the mouth of the conteiner.

A machine of the general type referred to is disclosed in'Le France Patent 1,185,687, granted June 6, 1916. Another example of this type of machine is set forth in Book Patent No. 8705M, granted November 12, 1907.

A machine of the type referred to is rovided with a. series of'neck molds; and t ore is associated with each neck mold a arisen mold and blow mold. The mol 8 are mounted on a rotatable carrier, which' carries the associated molds, in turn, to a. position over the glass tenk; end there, while the neck mold and the psrison mold are in closed condition and in cooperative relation, they are lowered so that the lower end of the perison mold will dip into or contact with the molten glass. Suction is then applied, end thccherge of glass is thus introduced into the perison mold and neck mold. At such time, 111 accordance with the present invention, s thread-equipped mandrel extends into the neck mold and is provided with a tip which sets as a core to form on,

initiel recess in the upper end of the blank mold, while the thread on the mandrel opcrates to mold threads in the mouth of the blank. The neck mold and parison mold are then raised, the perison mold is o ened, and the blow mold IS'OlOSEd on the lank, after which the blowing operation takes place.

The accompanying drawings illustrate the present invention in its preferred embodiinent, showing only such portions of a machine of the general type referred to as are necessary to enable the invention to be reed I5 ily understood.

A machine of the type referred to is known on the market as the Owens machine. As is well known in the art, such a machine employs a central pillar equipped G0 with suitable cams, and a frame adapts revolve about said pillar, this frame currying a. series of like mechanismsa-ny desired number. In the present case, it will sufiice to illustrate one set of mechanisms. 86

toting mechanism; Fig. 5, a broken vertical sectionel view token es indicated at line 5 of Fig. 4; Fig. 6, a. broken sectional view taken us indicated sit line 6-6 of Fig. 1, showing the up er portion of the mandrelmechunlsm; en' the same section showing the lower portion of the mandrel-mechanism and the association of the mandrel with the neck mold and parison mold.

In the illustration given, A represents the central stationary pillar having obesedisc A mounted on n base-frame A, the pillar A being equipped with a series of annular cams A, A", A, A and A; B, a.

rotatable frame having a. base-portion B W supported on the base-disc A and adapted to revolve thereon; C, driving mechanism mounted on ,the stationary member A and equipped with a. pinion" C, which drives the frame Bthrough the medium of a large gear or circular rack B D, a. vertically movable dipping frame (only one of a series being shown), which is mounted in a. way or guide B with which the rotary frame, or mold carrier, B, is-cquipped, the

dipping frame D having a radial extension or bracket arm D, which has formed integrally with its outer extremity the dipping hesd D D mechanism of well known construction serving to raise and lower the dip ing head, the mechanism B being actuate by the com A D u verticel plate forming at part of the frame D 1; Fig. 3, an 70 Fig. 7, a continuation of so pivot 1 and adapted to be opened and closed by mechanism F, which, in turn, is operated by the canrA; G, a sectional blow mold mounted on a pivot 2, with which the carrier B is equipped, and adapted to be opened and closed by mechanism G, which, in turn, is operated by the cam A; H, an. annular stationary cam carried by the base-member A and serving to raise and lower the blow molds;I, a portion ofthe glass tank (usually a revolving tank which forms a part of the furnace), this tank containing a pool of molten glass from which a supply is sucked into each parison mold, in turn; J, a mandrel-head which constitutes a combined cap-piece and mandrelbearing, said head being carried by a tubular shank J which works in the guide D and which is equipped withteeth 3, forming a rack through the medium of which the member J may be raised and lowered; J,

a nut mounted in the head J; J a 'mandrel having a thread-equipped tip 4, and having a threaded shank'5 which engages the nut J the shank 5 having extending upwardly therefrom a smooth stem 5 with a squared or angular extremity 5"; J, a rotatable vertical shaft journaled in the sleeve-like rack J and equipped at its lower end with an angular socket 6 which engages the angular portion 5 of the mandrel-shank; K, a bracket-arm projecting radially from the carrier B; L, a standard supported on the bracket arm K; M, mechanism for rotating the shaft J, in either direction; N (Figs. 1 and 3) a sliding cap or valve, which serves to connect the ports in the dipping head D when air is to be admitted to the blow mold (after the head J has been elevated); N, a lever mounted on a pivot U, a rock member mounted on pivot 8 and equipped with a segmental cam slot 9 which engages a cam stud 9 with which the lever hl is equipped at its upper end, the member Q being further equipped with a segmental rack or gear section 10, which r the rack 3; G, mechanism for actu the rock member (I the mecha- 0 being operated, in turn, by the a m if; and P, a cam the stationary l to iate a lever a d by top rrier L5 l mam-c t It will be understood that there are a series of such dipping heads; that there is a set of molds associated with each dipping head; and that there is a mandrel and mandrel-actuating mechanism associated with each dipping head.

Also, the neck molds E, thegathering molds, orparison molds F, and the blow molds G are operated in the usual manner.

Thedipping head D is provided with a vertical bore 13 (Figs. 3 and 7 and it is further 'provided with c ommunicating pamages ,14 and 15, the latter opening at the upper surface of the dipping head and adapted to be placed in communication with the bore 13 by means of a passage 16 with which the cap N is provided, assuming the cap J to be lifted out of the Way and the cap N moved ihto the operative position. With the passage 14 communicates an air pressure pipe 17 through which air passes'at the proper time to perform the blowing operation. a

The dipping head D is provided also with an annular passage 18 which communicates with a ort 19 having connected therewith an ex aust pi e 20. Suction exerted through the core passage 18 is communicated through vertical passages 21 to the bores of the neck mold and parison mold in the usual manner. Thus, when the pipe 20 is exhausted at the proper period,

lass will be drawn from' the glass tank I to the gathering mold to form the parison.

The combined cap-piece and mandrelbearing J is provided with a disk-likecapportion 22, which is adapted tobear u on the upper surface of the dipping head ly, and is also provided with a tubular portion 23 which is adapted to fit into the bore 13 of the dipping head. Mounted in the bore of the tubular member 23 is a nut 24 which is capable of sli ht vertical movement. The nut 9/1 has its lower end equipped with a flange 24, which is ads ted to bear on a horizontal shoulder 25 a ended by one of the arts 25 of the neck mold E. The nut is a apted to be pressed firmly against the shoulder 25 by a spring 28 which is confused in the bore of the tubular member 23 between the upper end of the nut and the upper end oi? said here. The nut is equipped a laterally projecting stud 27 which is capable of limited movement in a vertical slot with which the tubular member 23 provided. split ring :29 embraces the n r and engages a circumerein, thus closing the slot vent the nut :iu

oniine'd on may be ieierred 1 .i I 'w" a, 1m connected with the from droptil me ics tubular rack J by any suitable means. In the illustration given, the heed J is shown provided with utubulur shank 30 having a a circumferential recess engaged by ring sections 31 confined between clamping members 32, one oi which has pivoted connection with the lower end of the sleeve J, and the other of which hes a fiangewhich engages the lower surfaces of the members 31.

Referring to Fig. 7, the lower end of the gathering mold, or perison mold, it, is open to admit glass to the mold. The figure shows the purison 33 formed in the mold, the mandrel J having been turned counterclockwise to disengage the thread with which the mandrel-tip is provided from the thread formed in the mouth of the psrison. This unscrewing of the mandrel from the glass takes place preparatory to the lifting of the combined cup-piece and mandrel-beering J away from the clipping heed to permit the valve or cup N, which functions during the blowing operation, to be moved to the operative position as shown in Fig. 3.

Assuming the cap J to be in the position shown in Fig. 7, when the shaft J is rotuted clockwise, it turns the mandrel, the angular shank portion 5 slipping in the engulur socket 6. Assuming the shaft 5 to he retuted counter-clockwise, the mandrel is withdrawn from the mouth or the perison preporstory to lifting the heed J.

As has been indicated, the heed d is lifted through the operation oi the seer segment 10 on the rock 3; end in the rinul movement of the member (It, the cam slot Q operutes the lever N end shifts the velve N to the operutive position. During the lifting of the tech J, the shett J slips through its. operating pinion.

The mechanism M, which serves to operete the shett ql reversibly, comprises e reciprocuting reel: 34: which engages u pinion 35 which is fixed to turn with u gear 3% which.

meshes with u pinion 37 which is splined on the shsi t J so that the shett con slip through the pinion. 'llhe end the pinions mentioned are contained in s gear case 38, mounted on the stander-d L. y

The tech 3% forms an extension of u piston rod 39 which is equipped with smell. piston l0 end slurge piston tl, worhi r '35 respectively in cylinders i 0 und The pistons ere diherentiel cont .ed in diil crent sized cylinders. Air is udm .ted to cylinders, elternstely, through :712 nd it! which ere co with common i l e. pipeth connects diller cylinder e cssi t5 '7, whic which controls to piece the pipe 43, in communication with the pipe 4.7 through the interior pessege of the valve cusing, es shown in Fig. The valve l6 hes s depending stem 46 which is adapted to be engaged by the free ended at bell-crank lever 48 which is supported on a pivot 49. The other arm of the hellcrenk 48 is connected with the connecting rod P When the lower end of the lever P is moved by the cum 1 the connecting rod P is drawn to the right, es viewed in Fig. 1, and thus the vulve' lti is lifted, us is evident from Fig. 5. This results in shift ing the rock 34: to the left, us viewed in Fig. 4, thus roteting-the pinion 37 clmkwise, or in the direction to turn the mandrel J3 downwurdly through the nut J assuming the head J to be in operative relation with respect to the dipping heed D The com P is timed to sheet this notion utter the heed J has been lowered to the operetive position. After the roller on the lower end of the lever P posses the cum P, the vulve 46 returns to the closed position, the velve itself being equipped with u smell. piston 50; and since the piston til is always under pressure from air supplied through the pipe 42, the rock 3t is returned to its normal position at the right hand end oi its stroke, es viewed in Fig. i. The com lP permits this return to occur utter the gloss hes hed suit hcient time to cool in the neck mold so thet the threeds stormed in the mouth oi the parison will not he distorted by the open ation of unscrewing the msndrel from en gegement with the gloss threads. This pinscrewing ection occurs before themechumsm *0, Ooperutes to hit the reels d end time elevute the heed After the withdrnwsl of the heed J end its ettendent ports, the velve N is shiiited to the operutive position. in the moon time,

the gathering meld l is opened,

hlow mold hes'heen substituted for the guthering mold. These notions occur,

course, utter the dipping ironic ll) hos iii!) dill ilii

has been lowered into operative relation 1 means of the mechanism M, thus turning the mandrel through the nut J 2 to the lowered position, so that it will extend into the mold cavity of .the neck mold. At the proper moment, .-'suction is supplied through pipe 20, thus drawing glass into the, gathering or parison mold F. In practice, a suitable shear (not shown) is employed to cut the glass beneath the parison mold. After the gathering operation, the dipping frame is elevated, the mandrel is turned counterclockwise. and withdrawn from the mold,

cavity; and as the machine continues its rotation, the parison mold is opened, and the blow mold is substituted for the parison mold. In the meantime, the valve N is moved to operative position to enable the blowing operation to be performed.

It may be noted that the tip of the mandrel J is provided below the threaded portion 4 with a rounded extremity which serves as a core and forms a depression in the glass below the thread. When the blowing pressure is applied, the air enters this depression and 'blows the glass to the form of the blow mold.

The invention enables containers with internally threaded mouth portions to be produced in this type of labor saving machine without detriment to the operation ofthe machine and without decreasing the speed of the machine. As is well known, a machine of this type has a large output, and the present invention enables internally threaded containers to be produced by such a machine in large quantities and at small cost of production. I

The foregoing detailed description has been given for clearness of understanding only, and'no unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible in view of the prior art.

What I regard as new, and desire to secure by Letters Patent, is:

1. In combination with a dipping head, a neck mold associated with said dipping head and a gathering associated with said neck mold, a mandrel-head having a tubular member, extending into a bore with which the dippinghead is provided, a non-rotatable nut movably mounted in said tubular member, a spring tending to depress said nut, the lower end of said nut having a beari on a shoulder with which the neck mold 1s rovided, a mandrel having a thread-equipped tip and having a threaded shank working in said nut, means for raising and lowering the mandrel-head, and means for efiecting rotation of the mandrel while permitting longitudinal movement of the mandrel.

.a neck mold associated with said ipping head and a gathering mold associated with said neck mold, a mandrel-head adapted to be brought into cooperative relation with said dip ing head, a nut carried by said mandrelead, a mandrel having a threadequipped tip and having a threaded shank working in said nut, a tubular rack carrying said mandrel-head, a shaft extending through said tubular rack and servingto turn the mandrel, and mechanism for rotating said shaft in either direction.

3. In combination with a. dipping head, a neck mold associated with said dipping head and a gathering mold associated with said neck mold, a mandrel-head adapted to be brought into cooperative relation with said dipping head, a nut carried by said mandrel-head, a mandrel having a threadequipped tip and having a threaded shank working in said nut, a tubular rack carrying said mandrel-head, a shaft extending through said tubular rack and serving to turn the mandrel, and mechanism for rotating said shaft in either direction, the connections between said shaft and its rotating mechanism permitting longitudinal movement of said shaft.

4. In combination with a dipping head, an associated neck mold, and an associated gathering mold, a mandrel-head equipped with a nut, a mandrel having a threaded shank working in saidnut, a tubular rack carrying said mandrel-head, a shaft extend-' ing through said rack and having slip connection with the mandrel-shank adapted to effect rotation of the mandrel, a gear segmentengaging said rack, mechanism for actuating said gear'segment to raise and lower the rack, and reversing gear mechanism adapted to rotate said shaft in either direction, said gear mechanism being provided with a inion having splined connection with sai shaft, rmitting movement of the shaft through said pinion.

5. In combination with a di ping head, a neck mold and a gathering mo (1, a mandrelhead, means for moving said mandrel-head into and out of operative relation with respect to said dipping head, a nut carried by' said mandrel-head, a mandrel having a threaded shank working in said nut, means for rotating said mandrel in either direction, a valve adapted to be moved to operative relation with respect to said dipping head after withdrawal of said mandrel-head, and means for movin position and with ative osition.

6. n combination, a stationary pedestal equipped with a cam, a T013813 frame, a dipping frame mounted on sa' rotary frame,

drawing it from the oper- 2. In combination with a dippin head,

said valve to the operative means for raising and lowerin said di ping 1 frame, a dipping head carrie by sai dipping frame, a neck mold associated with said dipping head, a gathering mold associated with said neck mo'ld, said mold being raised and lowered by said frame, a mandrel-head adapted to be brought into cooperworking in said nut, and mandrel rotating means comprisin gear mechanism, a rack serving to reversi l operate said gear mechanism, and a pneumatic device serving to operate said rack, said pneumatic devicebeing controlled by said cam.

7. In combination, a non-rotating pedestal,

a rotating carrier mounted thereon, a dip ping frame mounted on said carrier and equipped with a dipping head, a suction gathering mold associated with said dipping ead, a mandrel-head equipped with a shank, mechanism for raising and lowering said mandrel-head through the medium of said shank, said mechanism being controlled by a cam carried by said stationary pedestal, a nut carried b said mandrel-head, a mandrel having'a t eaded shank working in said nut, a shaft adapted toactuate said mandrel, mechanism adapted to rotate said shaft in either direction, and a cam carried by said pedestal and controlling the operation of said last mentioned mechanism.

8. In combination, a non-rotating pedestal, a rotating carrier mounted thereon, a dipping-frame mounted on said carrier and equipped with a di ing-head provided with a bore. a neck-mod pededz'al and controllin and a gathering-mold mounted on said dipping-frame and associated with said dipping-head, a mandrelhead adapted to extend into said bore, said mandrel-head being provided internally with a nut and being equipped with a shank, mechanism for raising and lowering said mandrel-head through the medium of said shank, a cam carried by said stationa pedestal serving to actuate said mechamsm, a mandrel having a threaded shank worki in said nut and having a threaduippe tip, a shaft extending through sai mandrel-head shank and adapted to actuate the mandrel, mechanism mounted on said rotating carrier above the shank of said mandrel head and adapted'to rotate said shaft in either direction, and a cam carried by said the operation of said lastmentioned mec anism,

9. In combination witha dipping-frame provided with a dippin -head, means for raising and lowering sai dippin -frame, a neck-mold and a gathering-mol mounted on said dipping-frame, a mandrel-head having a tubular member extending into a bore with which the dipping-head is provided, a

nut mounted in said mandrel-head, said mandrel-head being adapted to serve as a cap for said bore, a mandrel having a thread-equipped tip and having a threaded shank worki in said nut, means for raising and lowering themandrel-head, a valve adapted to serve as a cap for said bore whenthe f'nandrehhead is withdrawn, means for actuating said valve, and mechanism for reversi-bly rotating the mandrel while 'permitr ting longitudinal movement of the mandrel.

' WARREN E. GLASPEY. 

